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Sigma 1.4x EX DG Tele Converter  Hot PDF Print E-mail
Teleconverter Reviews Sigma
User rating
3.9
out of 5
Editor's rating
1.0
out of 5
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Reviewed by:
Editor
Thursday, 07 February 2008
Average user rating: 3.9 
26 User reviews
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Lens Summary

Overview

1.4x EX DG Tele Converter

The 1.4 EX is placed between the lens and the camera, and it allows the photographer to use the 70-200mm f/2.8 lens as a 98-280m f/4 lens, and the 300mm f/2.8 lens as a 420mm f/4 lens; the high optical performance is maintained and the AF speed is not affected.

Lens Specifications

Details



Main Specification
1.4X
2X
Lens construction 5 elements in 3 groups 6 elements in 5 groups
Focal length 1.4x that of a master lens 2x that of a master lens
Aperture coupling range F2.8 - F32 F2.8 - F32
Reproduction ratio 1.4x that of a master lens 2x that of a master lens
Dimensions 68.5 X 19.5mm
(2.7in. X 0.75in.)		 68.5 X 52mm
(2.7in. X 2.05in.)
Weight 143g (5oz.) 234g (8.3oz.)
SRP £159.99 £199.99

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Editor review :  Sigma 1.4x EX DG Tele Converter
Overall rating (weighted)
1.0
Sharpness
1.0
Build Quality
1.0
AF Speed
1.0
Value for Money
1.0
Editor review following shortly
Why should you care what I think?
My relationship with this item: Editor review
Conclusions at a glance
Would you recommend this Item: Undecided

User Lens Reviews

Average user rating from: 26 user(s)

Overall rating (weighted)
3.9
Sharpness
4.0
Build Quality
4.0
AF Speed
3.8
Value for Money
3.8
 

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2 of 2 people found the following review helpful

Sigma T.C., Thursday, 19 August 2010


Overall rating (weighted)
4.8
Sharpness
5.0
Build Quality
5.0
AF Speed
4.0
Value for Money
5.0
This is the most useful T.C. to use. I use it only on the Sigma 300mm f2.8 lens and the Sigma 500mm f4.5 lens. It AF is fast and accurate and If used on a tripod or monopod I get some really good images. I really would not recommend this for anything slower than f5.0. Only my personal opinion. Good piece of glass. It is spectacular on the 500mm f4.5 lens. Sharp as a tack.
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1 of 2 people found the following review helpful

Sigma Teleconverter, Tuesday, 17 August 2010


Overall rating (weighted)
1.3
Sharpness
1.0
Build Quality
2.0
AF Speed
1.0
Value for Money
1.0
As far as I can determine, the teleconverter does not function as advertised, if at all. I am still evaluating it.
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1 of 1 people found the following review helpful

I love it, Friday, 14 May 2010


Overall rating (weighted)
4.3
Sharpness
5.0
Build Quality
4.0
AF Speed
4.0
Value for Money
4.0
So I dont have too much experience with camera lenses but I just love this one. I originally had a my standard 18-55mm kit lens for my canon xsi and a standard 50 mm f1.8 and I felt like I was in the need of some zoom. I was kinda looking at 50-300 lenses but I felt like I'd hate to have to keep switching lenses since I usually take pictures on the go in the outdoors. I shopped around a Bit then picked this one and I just love it. From what I can tell the picture quality is pretty good and I just love the general feel of the lens. It's just perfect for on the go and I have no complaints especially for the price I got it for. Just a great traveling lens. I highly recommend it!!!
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0 of 1 people found the following review helpful

perfect for a large range, Wednesday, 03 February 2010


Overall rating (weighted)
4.3
Sharpness
5.0
Build Quality
5.0
AF Speed
3.0
Value for Money
4.0
I had this lens for one week, and it is perfect for travel,
and when you don t know what where you are going to take pictures,

the built quality is excellent (as sigma does usual)
and it is very compact and light for a large range lens.

just not very sharp pictures at 18mm,
but with this kind of lens it is well known
and it is still better than the kit-lenses 18-55mm that I have.

if you see the concurrence : bigger, more bulky,
sometime the telephoto-lens increase by itself if you chose the wrong position...
and it can resist if you want to change focal between 18 and 200mmm,
with this one: you have NOT these problems !!!
of course there you can find more rage (18-270 for example),
but for me 18-200 is enough and also it is more compact,
there is no stabilization and ultra-sonic focus but,
first, the stab is not needed if you have a Pentax SLR,
and second, the ultrasonic-focus is more expensive
and not always needed and increase the size of the lens.

for me this lens is excellent with my Pentax K10D and my Pentax k-x
.... and by the way, this lens is not expensive at all.
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0 of 0 people found the following review helpful

Easy for a beginner to use, Wednesday, 27 January 2010


Overall rating (weighted)
5.0
Sharpness
5.0
Build Quality
5.0
AF Speed
5.0
Value for Money
5.0
I am very new to digital SLR photography, and I got this lens just a few days before going on a trip overseas. Even with virtually no practice with this lens and little experience with SLRs at all, I ended up getting really great pictures. The zoom was powerful (for the money) and it also gave me good detail and texture shots close up. I brought another lens on the trip, but after the second day it stayed in the hotel and I used this one exclusively. It was easy to learn and simple to use right away, and I'm looking forward to learning more about its capabilities as I gain more experience with SLR photography. It was a fantastic purchase for me, and I'd get it again with no hesitation.
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0 of 0 people found the following review helpful

Sigma's Best So Far, Wednesday, 13 January 2010


Overall rating (weighted)
4.3
Sharpness
4.0
Build Quality
4.0
AF Speed
5.0
Value for Money
4.0
I've been using this converter for a couple of years now, on my sigma 100-300mm f4, 120-400mm 4.5/5.6, and recently on my new Nikon AF-S 300mm f4. Works great on all of them. Fast auto focus (maunal on the 400mm sigma) sharp as the original lens.
The only downside is on the Nikon AF-s the readout says f4 when it should say 5.6 and the data says 300mm Focal length instead of 420mm.(its not designed for this lens but produces shots as sharp as the 300mm without the converter) It auto focuses accurately and light meters correctly . Considering you can pick these up for less than half the price of a nikon tc its a steal, Just make sure you get the DG model which is optimized for long telephotos.
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1 of 1 people found the following review helpful

Surprise with Sigma teleconverter, Monday, 28 December 2009


Overall rating (weighted)
2.8
Sharpness
2.0
Build Quality
4.0
AF Speed
3.0
Value for Money
2.0
I bought the Sigma APO teleconverter 1.4 (Nikon mounting)via Amazone. I like Amazone, but the converter was a surprise to me. It didn't work at all with the Nikon 18-200mm. Bad surprise. It works very well with the Sigma 150mm macro 2.8. Good surprise, as I expected. It works with the Sigma 150-500mm, but with losing autofocus, so not very usefull. It works, but very slow, with the Sigma 120-300mm 2.8. Be aware: good information about teleconverters and their possibilities is hardly available.
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2 of 2 people found the following review helpful

Great teleconverter, Friday, 04 December 2009


Overall rating (weighted)
5.0
Sharpness
5.0
Build Quality
5.0
AF Speed
5.0
Value for Money
5.0
I've been using this teleconverter with my Sigma 70-200 2.8 lens, and it works like a charm, exactly as advertised with, as far as I can tell so far, no degradation in image quality. I'm sure there is some (don't think you could get it to zero), but it's not noticeable to my eye, and I've been known to do some pixel peeping. The build quality is solid, as with all my other Sigma lenses.
Just don't forget that this adds a stop to your lens, so my 2.8 is a 4 with it on. Also, be SURE to check compatibility charts at Sigma before you buy it!
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4 of 4 people found the following review helpful

Great alternative to extend the reach of your Sigm, Tuesday, 03 November 2009


Overall rating (weighted)
4.8
Sharpness
5.0
Build Quality
5.0
AF Speed
5.0
Value for Money
4.0
I get the Sigma Teleconverter 1.4X especially for outdor sport games. I have Nikon D700 & D90 and Sigma 70-200mm f/2.8 HSM. I feel that 70-200mm f/2.8 is too short on D700 (full frame) and D90 (1.5x crop), therefore i get this teleconverter. It is a good alternative because it is much cheaper than buying 300mm f/2.8 or 100-300mm f4 lens.
Build quality

Build quality is the same as typical Sigma EX (professional line lens) and very well match with Sigma 70-200mm f/2.8 HSM.

COMPATIBILITY

Sigma teleconverter 1.4 only works with Sigma lenses. There are about a dozen compatible lens, but only a few retain auto focus function. There are: Sigma 180mm macro f/3.5 EX HSM, Sigma 300mm f/2.8 EX HSM, and Sigma 70-200mm f/2.8 EX HSM.

AUTO FOCUS PERFORMANCE

I don't feel any difference in auto focus performance, so it remain excellent.

IMAGE QUALITY

It loses a bit of Contrast and sharpness, but generally still very good. Check out sample images from my web blog. You can get the address from my Amazon profile.

CONCLUSION

Sigma teleconverter 1.4x is a great affordable alternative for Sigma telephoto lens' user, especially for those who need extra reach. It does not sacrifice auto focus performance and only degrade a little bit of image quality. But remember that the maximum aperture will be smaller by one stop. So it might not be very good alternative if you shooting in low light like night sports.
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1 of 1 people found the following review helpful

Disappointed/cheap quality, Friday, 16 October 2009


Overall rating (weighted)
1.3
Sharpness
1.0
Build Quality
1.0
AF Speed
1.0
Value for Money
2.0
I purchased this TC to go along with a Sigma 150-500mm. First off I noticed there was movement in the construction of the TC, there is a seam where the TC was put together and it had lots of flex. This is not my first multiplier and I have never seen such a condition. I returned it for a refund. Also I was disappointed to find out this TC doesn't offer the auto focus feature to work when mated with 150-500mm lens. This is the way it is designed, not a defect. IMO I will spend an extra $250 and go with a Nikon TC. I tried a Nikon 1.4xTC and the auto focus feature worked when hooked up with my Sigma 150-500mm lens, but costs almost $500. I will say in all my years buying from Amazon this was my first return ever, and their return policy was stellar. I like Amazon with how there return policy is handled.
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0 of 0 people found the following review helpful

Excellent teleconverter for the price, Sunday, 13 September 2009


Overall rating (weighted)
4.8
Sharpness
5.0
Build Quality
4.0
AF Speed
5.0
Value for Money
5.0
Compare Canon and Sigma I could not too much difference. The price is about $50.00 diference from Canon and Sigma. Sigma has more lens that you can use compare to Canon. I would recommend this Sigma converter.
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0 of 0 people found the following review helpful

Nice addition, nice price, Thursday, 03 September 2009


Overall rating (weighted)
3.5
Sharpness
4.0
Build Quality
3.0
AF Speed
3.0
Value for Money
4.0
I got a defective lens the first time but Amazon replaced it immediately. The replacement lens is a nice addition to get that extra length for wildlife captures without too much expense. Using a cable release and a tripod, I can't see any image degradation while matched to the Sigma 50-500mm. It does have AF on my K20D. I'm quite pleased with my purchase, and with Amazon's service.
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3 of 3 people found the following review helpful

Great pairing with the Sigma 70-200mm f/2.8, Thursday, 16 July 2009


Overall rating (weighted)
5.0
Sharpness
5.0
Build Quality
5.0
AF Speed
5.0
Value for Money
5.0
Properly paired with recommended lens, this is a great addition to your camera bag. Sometimes you just need that little extra focal length. With this teleconverter (again, with a recommended lens) you can get that while only sacrificing one f-stop.

With the aforementioned lens, you still get really fast focusing. My D300 only hunted for focus when the lighting conditions were pretty bad.
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6 of 6 people found the following review helpful

A Seamless Fit, Wednesday, 10 June 2009


Overall rating (weighted)
5.0
Sharpness
5.0
Build Quality
5.0
AF Speed
5.0
Value for Money
5.0
I have tried a Kenko 1.4X TC in the past for my Sigma 150mm 2.8 macro lens, but it was very slow and even inaccurate in its ability to autofocus. A friend suggested that I buy the Sigma brand, because they work so well together. It is, indeed, a seamless fit. Autofocus is fast and accurate, and you don't realize it's between the lens and the camera when you shoot.

My recommendation is to forget Kenko if you own a Sigma lens. Go straight for the Sigma TC. You'll not regret it.
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1 of 2 people found the following review helpful

Limited Compatibility with Lenses, Thursday, 28 May 2009


Overall rating (weighted)
3.0
Sharpness
3.0
Build Quality
3.0
AF Speed
3.0
Value for Money
3.0
Didn't actually use the teleconverter because it did not fit any of my lenses. I was in a hurry and just figured it would work with my Sigma 70-300mm DG, f4-5.6 --- or at least some of my other lenses such as the Pentax DA* 50-135mm f/2.8. NOT. Has a very limited set of compatible lenses; check on the Signma site (not listed on the Amazon site). I would have been shooting in bright sunlight, so was not concerned with the loss of a stop.
On the plus side, Amazon was great. Paid for return postage and quickly credited my purchase.
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